From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D47A3CA9EB5 for ; Mon, 21 Oct 2019 08:24:03 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A580620640 for ; Mon, 21 Oct 2019 08:24:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fdlQ2zQ/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A580620640 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amlogic.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=00uqZ8G/nWzY9a61Zs9A7q1ZqzSnpXbEJN95b3J0TQM=; b=fdlQ2zQ/54nIxL iOYX3jJzJhnIQLbtna56RcGGSTNiO5AdOhm2gmkHxZwu+b+ySc/OJPWglZRtrabxGnPvSN/lNQY4e 3QrRMw1b21+oIT4rLxY3oWuHiJIZ+3vF3NAsQzdu5X+jHLzhS70RpJKSCA9klgsB+JjGl77fsWmpB umXwHz5J5WjzIW1iCpmJ7Bjn7Pcfw4Y3oLAEcobSkIB2hc1CISB7JVQ/IkAjOY8cL+coRiwAIzcxQ +hvv/E8k8ladJLCAiUy6cLB9BW67VYhFV3OiADvdEMuKIsg2TqQMTg8pv5WYMVcMG2d6+y3ukQKAp u4LNQm6hHQv+JsEiipyQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iMSys-0001wr-7X; Mon, 21 Oct 2019 08:23:58 +0000 Received: from mail-sh.amlogic.com ([58.32.228.43]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iMSyo-0001qY-Aa for linux-amlogic@lists.infradead.org; Mon, 21 Oct 2019 08:23:55 +0000 Received: from [10.18.29.227] (10.18.29.227) by mail-sh.amlogic.com (10.18.11.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1591.10; Mon, 21 Oct 2019 16:23:57 +0800 Subject: Re: [PATCH] mmc: fix mmc dma operation To: Neil Armstrong , Ulf Hansson , Kevin Hilman References: <1571637541-119016-1-git-send-email-jianxin.pan@amlogic.com> From: Jianxin Pan Message-ID: Date: Mon, 21 Oct 2019 16:23:57 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Originating-IP: [10.18.29.227] X-ClientProxiedBy: mail-sh.amlogic.com (10.18.11.5) To mail-sh.amlogic.com (10.18.11.5) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191021_012354_386451_7C99F1E7 X-CRM114-Status: GOOD ( 11.63 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Victor Wan , linux-mmc@vger.kernel.org, Nan Li , linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, Jerome Brunet Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Hi Neil, Thanks for the review, I will update the subject and commit message in the next version. On 2019/10/21 15:57, Neil Armstrong wrote: > Hi, > > Thanks for the fix. > > First, you should add "mmc: meson-gx:" in the subject. > > On 21/10/2019 07:59, Jianxin Pan wrote: >> From: Nan Li >> >> In MMC dma transfer, the region requested by dma_map_sg() may be released >> by dma_unmap_sg() before the transfer is completed. >> >> Put the unmap operation in front of mmc_request_done() to avoid this. > > > You should add a "Fixes:" tag so it can be backported on stable kernels. > >> >> Signed-off-by: Nan Li >> Signed-off-by: Jianxin Pan >> --- >> drivers/mmc/host/meson-gx-mmc.c | 15 ++++++++------- >> 1 file changed, 8 insertions(+), 7 deletions(-) >> [...] >> } >> >> static void meson_mmc_read_resp(struct mmc_host *mmc, struct mmc_command *cmd) >> > Neil > > . > _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic